Door fastener



April 5, 1932- F. D, GRUND 1,852,008 noon FASTENER Filed Jan. 5; 1929 2Sheets-Sheet l April 5, 1932. F. D. GRUND 1,852,003

noon FASTENER Filed Jan. 5, 1929 2 Sheets-Sheet 2 4 37 Mill Fig.4-

Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE FLETCHER D. GR'UND, OFTOLEDO, OHIO, ASSIGNOR TO THE AMEBICAfN' SWISS COM PANY, OF TOLEDO,OHIO, A CORPORATION OF OHIO DOOR FASTENER Application filed January 5,1929. Serial No. 33Q,587.

This invention relates to a door fastener, with particular reference toits adaptation to the type of door generally used on sedans,

coaches and other closed car bodies.

5 The general object of the invention is to provide a door fastenerhaving a latch bar or bolt normally retractable by means of an outsidehandle and, in connection therewith, to provide improved means operableby a 1 remote control inside the car to retract the latch bar or tolatch the same so that the door cannot be opened from the outside.

- The invention consists further in various novel details andcombinations of elements,

1 the nature and purpose of which will be hereinafter more specificallyexplained in connection with the accompanying drawings, illustrating thesame.

In the drawings:

Figure 1 is an elevation of my improved door fastener as viewed from theside ad-,

jacent the door.

Figure 2 is an edge view of the same as viewed from the bottom of Figure1.

Figure 3 is a view similar to Figure 1, but showing a modifiedconstruction.

Figure 4 is an edge view, as viewed from the bottom of Figure 3.

Figure 5 is a view similar to Figure 1, but 30 showing anothermodification.

As shown in Figures 1 and 2, the invention is mounted on a case plate 5which is adapted to be attached to the inner face of the door at thefree edge thereof. A latch bar or bolt 6 is 35 adapted to be projectedfrom the caseplate to engage the striker plate on the door jamb.

This bolt is formed with a shoulder 7 which 45 mem er 14. The roll-backmember is secured to a bushing in which is mounted a door handle shank16. The bushing 15 is rotatably mounted in the case plate 5 and abearing plate 17 secured to the case plate, so that the handle, which issecured to the shank 16 outside the door, may be rocked to retract thebolt 6 and open the door.

The roll-back member 14 is formed with a lug 18 adapted to be enga ed bya pivoted dog or other stop 19 to og the roll-back member so that thedoor cannot be opened from the outside. In this instance the dog 19 ispivotally mounted on a pin 20 secured to the case plate and is normallyheld in retracted or in advanced position by means of a. spring 21, asshown in Figure 1.

The dog 19 is formed with an arm 22, which pro ects through a retainer23 formed 'in the housing and terminates in a shoulder.

24 disposed at an inclination with reference to the direction of themovement of the slide 10. The shoulder 24 is engaged by the rounded endof a remote control bar or 1 f Thebar 25 is formed with a slot 26 till.1 h which projects a pin 27 mountedin the slide 10, thus providinga-lost motion connection between the slide 10 and the remote control bar25.. A friction washer 28 is mounted on the pin 27. A guide pin 29 issecured to the retainer 23 and extends through a slot 30 in the slide10.

With the remote control bar 25 in the position shown in Figure 1, thebolt 6 may be retracted by means of the roll-back member 14 throughoperation of the handle on the shank 16. In such operation the slot 26per mits the slide 10 to move baekwardly with- .out disturbing theposition of the remote control bar 25 and during this movement the dog19 is held against the edge of the retainer 23 by the spring 21; Alsothe bolt 6 may be retracted by means of the remote control bar 25through the engagement of the pin 27 with the front end of the slot 26.The lost motion permitted by the slot 26 also permits the remote controlbar 25 to move forwardly to hold the door handle so that it cannot beopened from the outside. This dogging operation is effected by the camengagement of the front end of the bar 25 with the shoulder 24, thusrocking the dog 19 until it engages the lug 18 on the roll-back member.The friction washer 28 merely prevents rattling. The bar 25 is held inits forward position in any suitable manner as by spring catch meansassociated with the remote control handle.

In the modification shown in Figures 3 and 4, the invention is mountedon a case plate 35 through which a latch bar or bolt 36 projects. Thisbolt is formed with a shoulder 37 which is engaged by a spring 38 tonormally hold the bolt in projected position. The other side of theshoulder 37 is engageable by a projection 40 formed on a roll-backmember 41 to retract'the bolt. The rollback member 41 is secured to abushing 42 ,which is rotatably mounted on the case plate 35 and in abearing plate 39 secured to the case plate, and is provided with a doorhandle shank 43. A shoulder 44 formed in the rollback member 41 isengageable by a projection 45 on a dog or stop 46 to dog the rollbackmember so that it cannot be used as a medium for retracting the bolt.The dog 46 is pivotally mounted on a pin 47 secured to the case plateand carries a pin 48 which projects through an inclined slot 49 formedin the end of aremote control bar 50. This bar is also formed with alongitudinal slot 51 through which projects a guide pin 52 secured tothe bolt 36. This provides a. lost motion connection between the bolt36'and the remote control bar 50, while the washer 53 prevents rattling.In this construction, as the bar 50 is moved forwardly, the inclined.edge 54 of the slot 49 has a cam action on the pin 48 to move the dog 46into dogging position. As the bar 50 is retracted, the inclined edge 55engages the pin 48 to rock the dog 46 into position to release theroll-back member 41 and permit the door to be opened by means of ahandleon the shank 43. The slot 46 through which the pin 47 projects permitsthe bolt 36 to be retracted, while the slot 51 permits the bar 50 to bemoved forwardly to dogging position and at the same time permits theretraction of the bolt 36 by means of the bar 50, when desired.

In the modification shown in Figure 5, the invention is mounted on acase plate 57 from which a. latch bar orbolt 58 projects. This bolt isformed with a shoulder 59 which is engageable by a spring 60 to hold thebolt normally in projected position; A slide 61 is secured to the bolt58 and is formed with a shoulder 62 adapted to be engaged by aprojection 63 on the roll-back member 64.

This roll-back member has a rearwardly and downwardly projecting finger65 which is engageable by the end of a dog 66 to dog the roll-backmember with the bolt projected. The dog is pivoted on a pin 67 andprojects through a keeper 68 to engage the end of the finger 65. Aspring 69 mounted on the pin 67 is adapted to engage a flange 70 at therear end of the dog to rock the latter out of dogging position. A remotecontrol member 71 is connected to the slide 61 by a pin 72 which passesthrough a slot 73, thereby providing a lost motion connection. When themember 71 is advanced beyond bolt releasing position a nose 74 at itsfront end engages the finger 7 O to rock the dog to dogging position.The slide 61 is guided on the outer face of the keeper 68 by a pin 7 5which extends through a slot 76 in the slide. Itv will be noted thatwhen the dog is in dogging position and pressure is exerted to rock theroll-back member to retract the bolt, the ends of the finger 65 and thedog 66 have a toggle engagement which prevents the actuation of thebolt, since the movement of the dog is limited by the upper edge of thekeeper 68. When the member 71 is Withdrawn the dog 66 is adapted to beswung by the spring 69 to the lower end of the keeper 68' and out ofengagement with the finger 65. The abutting ends of the finger 65 andthe dog 66 are inclined so that one has a cam action on the other. Ifdesired, the inclination of these abutting ends may be such that, whenthe member 71 iswithdrawn from dog actuating position, the retractivemovement of the roll-back member 64 will throw the dog to non-doggingposition without the necessity of employing the spring 69.

From the foregoing description'it will be seen that I have providedmeans whereby the door may be optionally controlled from outside thedoor by means of the roll-back member or from inside the door by meansof the remote control bar. The latter, however, may be used as theinstrument for actuating the dog to positively dog the rollback memberso that it cannot be operated.- I have shown and illustratedspecifically two forms inwhich the invention may be embodied, but it isto be understood that the invention may be embodied in other formswithout departing from the scope thereof, as defined in the appendedclaims.

What I claim is:

1. A door fastener comprising a case plate, a spring teiisioned bolt onsaid case plate, inside means for retracting said bolt including alongitudinally movable bolt-retracting elenient, outside means forretracting said bolt, a dog for said outside means movable to and fromdogging position, a lateral extension on said dog, and co-engaging cammeans on said extension and the end portion of said bolt retractingelement for actuating said dog to dogging position.

2. A door fastener comprising a case plate, a spring-tensioned bolt onsaid case plate, inside means for retracting said bolt, outside meansfor retracting said bolt, said inside 5 means including a horizontallydisposed remote control member, a dog for said outside means, theextreme end of said horizontally disposed member being engageable withsaid dog for moving the latter to dogging position when said insidemeans is moved in non-boltretracting direction.

3. In a door fastener, the combination of a case plate, a bolt slidablymounted on the case plate, a roll-back member normally 0 said secondmember respectively, operable by a forward movement of the latter toprevent the actuation of the roll-back member to retract the bolt.

4. In a door fastener, the combination of a case plate, a bolt slidablymounted on the case plate, a roll-back member normally operable toretract the bolt, a second member substantially in alinement with thebolt and slidable rearwardly to retract the bolt independently of theroll-back member, a movable stop, and a spring normally holding saidstop out of the path of the roll-back member, said movable stop havingan extension directly in the path of the end of said second member, whenthe latter is advanced, being engageable with said extension to move thestop. in opposition to the spring, into the path of the roll-back memberto prevent the latter from operating to retract the bolt.

5. In a door fastener, the combination of a case plate. a latch boltslidably mounted thereon, a roll-back member for retracting said bolt, adog movable into position to dog said roll-baclrmember, a retainer forguiding said dog and constituting a back stop therefor, and

means on the face of said keeper remote from the dog for guiding saidbolt.

6. In a door fastener, the combination of a case plate, a latch boltslidably mounted thereon, a roll-back member for retracting said bolt, adog movable into position to dog said roll-back member, a retainer onsaid case plate, said dog having a lateral projection projecting throughand guided by said re- 9 tainer, a guide pin 'on the outer face of theretainer, said bolt having a slot receiving said pin, and a remotecontrol member operable in one direction to engage said lateralprojection and move the dog to locking posi 0 tion, and movable in theopposite direction to retract the bolt independently of the rollbackmember,

7. A door latch comprising a case plate. a spring tensioned latch bolton said case plate, outside meansfor retracting said latch bolt; insidemeans for retracting said bolt including a longitudinally movableboltretracting element, a dog pivoted intermediate its ends and havingone end movable to block movement of said outside retracting means, alateral extension on the opposite end portion of said dog, andco-engaging cam surfaces on said extension and the end portion of saidbolt retracting element for actuating said dog to dogging position.

8. A door latch comprising a case plate, a spring tensioned latch boltmovable on said case plate, inside means for retracting said latch boltincluding'a longitudinally movable bolt retracting element, a roll backoperable from the outside for retracting said latch bolt, a dog movableto block movement of said roll back, a raised portion on said caseplate, said dog being disposed at one side of said raised portion andsaid latch bolt being guided on the opposite side of said raisedportion, an extension on said dog, and coengaging cam means on saidextension and the end portion of said bolt'retracting element foractuating said dog to dogging position.

9. A door latch comprising a case plate, a spring tensioned latch boltmovable on said case plate, inside means for retracting said latch boltincluding a longitudinally movable bolt retracting element, a roll backoperable from the outside for retracting said latch bolt, a dog movableto block movement of said roll back, a raised portion on said caseplate, means to pivot said dog on one side of each raised portion, meanson the opposite side of the raised portion to guide movement of saidlatch bolt, and co-engaging cam means on said extension and the endportion of said bolt retracting element for actuating said dog todogging position.

10. A door latch comprising a case plate, a

spring tensioned latch bolt on said case plate, outside means forretracting said latch bolt, inside means for retracting said latch boltincluding a longitudinally movable boltretracting element, meansproviding lost mo tion between said element and bolt when said latchbolt is projected, a pivoted dog having a portion movable to blockmovement of said outside retracting means, an extension on said dogdisposed in the path of movementof said element, and co-engageable camsurfaces on the forward end of said element and said extension foractuating said dog to dogging position upon said lost motion of saidelement.

11. A door latch comprising a case plate, a

outside retracting means, spring means normally holding said dog awayfrom dogging position, an extension on said dog, stop means againstwhich said dog normally rests adapted to dispose said extension in thepath of said lost motion of the retracting element, and co-engageablesurfaces on the forward end of said element and said extension foractuating said do to dogging position upon said lost motion 0% saidelement.

In testimony whereof I have hereunto signed my name to thisspecification.

FLETCHER D. GRUND.

